Due to uncontested problems w/ the stock LT-1's cast pistons not able to handle detonation problems associated with supercharging, what would be the reasons for not doing both???
If I had, lets say, a stock bottem end LT-1 with an intercooled ATI kit running at 6psi, and then I put on a 75 shot or maybe even a 100 shot of nitrous, wouldn't the N2O cool the fuel and help alleviate the detonation problems, while also increasing HP? Or am I living in a dream world. The reason I ask is because it seems pretty overwhelming, that these little rice burners can put turbo's and Naaaaws on their little 4 bangers and not blow the damn things up. I'm sure a lot of them do blow 'em up, but, It's a regular practice to do both in the import scene. Why should V8's be any different?
opinions--technical experience? I know Janaelen has both, but I can't remember if the motor has been built. :confused:
I run a intercooled procharger P-1SC at 8 pounds of boost with no detonation. I think nitrous wouldn't hurt in small amounts. Say 75 HP. The cylinder pressure would be very very high using the two together.
In general yes I would agree, but I've heard the stock bottom end can take 475 to 500 HP. If I had a S/C w/ 6 psi of boost producing 425 HP and then put a 50 Shot of N2O on top of that....that's not any more stress on the bottom end than a S/C running 8psi putting out 480 HP, and the bottom end at that point isn't the problem it's the pistons...
...Therefore, my question should be changed a bit:
Would "DETONATION" be a problem if I ran 6psi of intercooled boost and a 50 shot of n2o on a stock mill? Consider that the n2o charge should reduce the temperature of the compressed charge detering detonation.
In general yes I would agree, but I've heard the stock bottom end can take 475 to 500 HP. If I had a S/C w/ 6 psi of boost producing 425 HP and then put a 50 Shot of N2O on top of that....that's not any more stress on the bottom end than a S/C running 8psi putting out 480 HP, and the bottom end at that point isn't the problem it's the pistons...
...Therefore, my question should be changed a bit:
Would "DETONATION" be a problem if I ran 6psi of intercooled boost and a 50 shot of n2o on a stock mill? Consider that the n2o charge should reduce the temperature of the compressed charge detering detonation.
Any more opinions?
What compression ratio? Any more than 6psi on stock LT1 and you are running risky. Also depends on how good your tune is. It better be dead on if you plan on running nitrous on top of a supercharger and a stock motor. I am sure the bottom end would handle it fine, but you have to reduce the compression ratio down to an acceptable level for that much power adder.
Re: N2O and supercharging stock LT-1 ???? (Vette92)
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What compression ratio? Any more than 6psi on stock LT1 and you are running risky. Also depends on how good your tune is. It better be dead on if you plan on running nitrous on top of a supercharger and a stock motor. I am sure the bottom end would handle it fine, but you have to reduce the compression ratio down to an acceptable level for that much power adder.
Like I said before...stock--10.5, however, if running an 8psi stock intercooled ATI kit boasts 480HP, I would think it would actually be safer w/ 6psi, like I said I would be running, with a moddest 50HP n2o shot.
YES, the car will be tuned--both before I drive the car with the newly installed s/c, and after when I take my immediate trip to the dyno.
Any more opinions on this? I'd wonder why compression ratio would matter for my scenario. If I'm at risk of blowing the head gasket, or ruining the compression rings, let me know, those are the main factors I could see being the problems based on high cylinder pressues. Otherwise, 475-500HP, doesn't seem unreasonable for the pistons as long as the detonation factor is eliminated. Using N2O on top should bring the cylinder temps down considerably if used.
Using N2O on top should bring the cylinder temps down considerably if used.
N2O will bring the temps of the intake charge down, it will create additional heat during the combustion process. If all you are doing is using Nitrous as an intercooler and keeping it to a 50 shot, you may not have any problems. However, I would not run even 8psi of boost on a stock motor after reading of several people blowing rings out with just 8psi.
Re: N2O and supercharging stock LT-1 ???? (Vette92)
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I would not run even 8psi of boost on a stock motor after reading of several people blowing rings out with just 8psi.
Good luck.
I agree 100% ... I most likely won't do the nitrous. I'd rather use the money and save for a built blower short block to through in it so I can run well over 6psi.
Thanks to everyone. :cheers: :cheers: :cheers: :cheers: :cheers:
Re: N2O and supercharging stock LT-1 ???? (Vette92)
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Sounds like a wise decision. Just build a 383 at 9.5 compression and take the blower up to 12-14psi and you have around 550 to the rear easy. ;)
You must have read my mind. That's the inevitable plan. For now I'll just run stock w/ 6psi.....can't wait, I've been enjoying my meesly 300HP 345 Tq for 3 years now, the bump to approx. 425HP should be fun for quite a while longer.....until I get beat that is. Speed is addicting. :cheers: :cheers: :cheers:
Re: N2O and supercharging stock LT-1 ???? (joe-red78)
I've pretty much decided since most people think both the ATI kit and the Vortech kit are well made, I'll go with the ATI kit because for about the same price it comes with the most import part: the intercooler. I was thinking I'd go with the Carroll Supercharging kit, it's essentially a Vortech kit w/ Carroll bracketry and for extra you get a gaseous intercooler. Some people say Gaseous is a better way to go, but I've heard of a lot of people getting the Caroll, or Vortech kit, then paying like $1400 extra for the ATI intercooler. ???? Both the Carroll kit and the Vortech kit are between $4,500 and $5,000 WITHOUT an intercooler. Therefore, for $4500 w/ the intercooler, it seems like the cheaper way to go. I don't think I'm going to get the self contained unit either. I can save money and tap the oil pan. Someone told me there's a benefit to that because the engine oil will keep the head unit cooler than the sc one.
Installation on the other hand can be very expensive. I called two places that ATI recommended and they were charging like 20 hours of book time at $85 an hour! I decided to dedicate a weekend to doing it myself. Afterall, if I have problems I can get ahold of people on this forum ;)
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N2O and supercharging stock LT-1 ????
